Coin-freed alarm-clock.



N.794.718. PATENTBD JULY 1a, 1905. s. KRAUSB a; s. GRUDZINSKI..

GOIN FREED ALARM CLOCK.

APPLICATION FILED NOV. 4. 1904.

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No. 794,718. PATENTED JULY 18, 1905. S. KRAUSE & S. GRUDZINSKI.

G01N FREBD ALARM CLOCK.

APPLIOATION FILED Nov. 4. 1904.

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UNITED STATES Patented July 18, 1905.

PATENT OFFICE.

COIN-FREED ALARM-CLOCK.

SPECIFICATION forming part of Letters Patent No. 794,718, dated July 18, 1905.

Application iled November 4, 1904, Serial No. 231,434.

To all whom it may comer/17%:

Be it known that we, STANIsLAUs KRAUSE and STEFAN GRUDZINSKI, engineering students, citizens of the Swiss Republic, vresiding at Zurich, Switzerland, have invented certain new and useful Improvements in Coin-Freed Alarm-Clocks, of which the following is a specification.

This invention relates to a device for use with alarm-clocks for operating the latter by the insertion of a coin, assuming the springs of said clocks to be in a wound condition. The person who desires to use such clock must before inserting the coin arrange the hands to indicate the correct time and also adjust the alarm for the time at' which it is desired it shall strike. After so adjusting the alarm and inserting the coin the clockwork itself is automatically started. l

A form of construction of the improved clock is shown as an example in the annexed drawings, in which the clockwork is shown diagrammatically and only in part and the clock-casing is not illustrated.

Figure 1 is a side elevation; Fig. 2, a plan view. Figs. 3 and 4 are end views from the left and right, respectively; and Figs. 5 and 6 are sectional detail views.

Between the clockwork, which is of known construction, and the front wall of the casing a partition a is arranged, consisting of the plates a and a2 and the distance piece or pieces a3. (In Fig. 1 the plate a' is assumed to be removed.) In this partition a is the passage or channel b for the coin, said passage terminating at the front wall of the casing, and below the opening for insertion of the coin there is arranged between the plates a and a2 the double-armed lever c, pivoted at c. This lever can be counterbalanced by means of a weight d on the end thereof and is held by said weight in its position of rest against a stop-pin c2, Fig. 1. At its lower end the coinpassage is closed by the double-armed lever e, pivoted at e between the plates a and a2. The said lever e is held in its position of rest against a pin e2. On the shorter arm of said lever two stop-pins e3 and e4c are arranged, one of which, e3, is adapted to hold the balance f of the clockwork in its position of rest, whereas the other pin e* is adapted to stop the alarmwork. For this purpose on the axle g, on which is mounted the alarm-striker g', is arranged a lever g2, which can be completely displaced only when the stop-pin e4 is raisedthat is to say, when said pin is in the path of the recess or bend g3 in said lever g2. On the longer arm of the lever e is arranged a pin e5, which passes through a slot in the partitionplate a and engages the bifurcated end of the double-armed lever L, pivoted at L. The upper arm of said lever t bears against a spring e', secured to the plate a.

The pin 71', fixed to the spring z', Figs. 2 and 11, is adapted to momentarily stop the lever c.

On the back plate of the clock-frame is pivotally suspended at 71: the lever r, having arms 162 and 7c3 passing through slots af and a, respectively, in the partition a. This lever is for the purpose of successively arresting and releasing 'the coins and is operated by means of an abutment m, arranged on the springwheel Z of the alarm-work and is acted upon by a spring n, fixed to the back plate.

The action of the device is as follows: The coin inserted encounters the longer arm of the lever e, pressing it downward into the position shown in broken lines in Fig. 1, and rolls downward through the channel or passage I) onto the longer arm of the lever e, also pressing this latter lever down into the position shown in broken lines in Fig. 1. At the same time the pin e5 acts upon the lever L and causes it to rock on its pivot t, so that its upper end presses the spring r1 toward the partition a. The pin e" is thus caused topass through a suitable slot in said partition a to prevent the lever c, which is now in its upper position, from being again depressed. The coin is temporarily prevented by the arm X62 of the lever 7c from leaving the lever e. (See Figs. 2, 4, and 5.) The said lever e remains in the position given to it by the coin-that is, with the shorter arm thereof raised-so that the stop-pin e3 is removed from lthe balance f of the clockwork and the latter can begin its movement. Virhen at the predetermined moment the alarm-work is released, the springy the pin d) toward the passage 0, leading to outwheel l, with the abutment m, passes the bend la* of the lever la, and the latter is pressed back so that its arm 7112 is removed from the slot L5 in the plate a2, and simultaneously the arm k3 enters the slot c, Fig. 6. The coin can then pass farther along the lever e until it encounters the arm 7c3. When the abutment m has again released the lever the latter is returned to its original position by the spring n, and with it also the arms lez and k3. The coin is thus released and can be guided into a suitable cash-drawer. (Not shown.) As soon as the coin has thus passed along the lever e returns to its former position-that is to say, its shorter arm falls again, the stop-pin e3 stops the balance f, and the stop-pin e4 does not permit the lever g2 to completely oscillate, so that both the alarm-work and clockwork are stopped at the same time. Y

Should asecond coin be inadvertently inserted when the clockwork is in action, said coin will roll along the lever c (which is arrested by slide the clock-casing. The same thing takes place withcoins which are not of suiiicient weight to depress the lever 0.

This alarm-clock is especially suitable for hotels, as it enables every visitor to be awakened at the hourhe desires by paying a small fee.

We claim- 1. ln a clock the combination with aclockwork and alarm-work, of a `chute for passage of a coin, a lever normally stopping the clock and alarm works and adapted to be depressed by the coinv to release the clockwork, and means operated by the alarm-work adapted to arrest the coin until the alarm has operated and thereupon to release said coin to allow said lever to rise again to stop the clockwork, substantially as described.

2. In a clock the combination with a clockwork and alarm-work, of av chute for passage of a coin, a lever adapted to be depressed by the coin, a second lever normally stopping the l clock and alarm works and also adapted to be i be depressed by the coin, a second lever normally stopping the clock and alarm works and also adapted to be depressed by the coin to release the clockwork, a suspended lever operated by the alarm work and having arms adapted to arrest the coin until the alarm has operated and thereupon to release said coin to again stop the clockwork, and means for preventing the depression of the counterweighted lever during the operation ofthe yclockwork substantially as described.

4;. In a clock the combination with a clockwork and alarm-work, of achute for passage of a coin, a counterbalanced lever c adapted to be depressed by the coin, a second lever normally stopping the clock and alarm works and also adapted to be depressed by the coin to release the clockwork, a suspended lever operated by the alarm-work and having arms adapted to arrest the coin until the alarm has operated and thereupon to release said coin to again stop the clockwork, a third doublearmed lever /b operated by the lever e, a spring acted upon by said lever and an abutment on said spring adapted to prevent the depression of the firstmentioned lever c during the operation of the clockwork substantially as described.

In witness-whereof we have signed this speciiication in the presence of two witnesses.

STANISLAUS KRAUSE. STEFAN GRUDZINSKI.

Witnesses:

A. LIEBERKNECHT, TH. EDEL. 

